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637 hedge funds and large institutions have $13.6B invested in IDEX in 2025 Q2 according to their latest regulatory filings, with 76 funds opening new positions, 263 increasing their positions, 214 reducing their positions, and 72 closing their positions.

New
Increased
Maintained
Reduced
Closed

27% more call options, than puts

Call options by funds: $3.62M | Put options by funds: $2.84M

23% more repeat investments, than reductions

Existing positions increased: 263 | Existing positions reduced: 214

2.53% more ownership

Funds ownership: 99.65%102.18% (+2.5%)

6% more first-time investments, than exits

New positions opened: 76 | Existing positions closed: 72

0% more funds holding in top 10

Funds holding in top 10: 77 (0)

0% less funds holding

Funds holding: 638637 (-1)

0% less capital invested

Capital invested by funds: $13.6B → $13.6B (-$57.5M)

Holders
637
Holders Change
-1
Holders Change %
-0.16%
% of All Funds
8.39%
Holding in Top 10
7
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.09%
New
76
Increased
263
Reduced
214
Closed
72
Calls
$3.62M
Puts
$2.84M
Net Calls
+$779K
Net Calls Change
-$857K
Name Holding Trade Value Shares
Change
Change in
Stake
SAM
351
Securian Asset Management
Minnesota
$680K -$17.7K -100 -3%
TSS
352
Two Sigma Securities
New York
$670K -$289K -1,629 -30%
O
353
Ossiam
France
$666K +$42.5K +240 +7%
First Manhattan
354
First Manhattan
New York
$663K
GIBU
355
Gulf International Bank (UK)
United Kingdom
$654K
WG
356
Welch Group
Alabama
$650K
William Blair & Company
357
William Blair & Company
Illinois
$649K -$69.8K -394 -10%
HI
358
Horizon Investments
North Carolina
$648K +$464K +2,618 +241%
GIM
359
Glenmede Investment Management
Pennsylvania
$636K +$643K +3,625 New
Man Group
360
Man Group
United Kingdom
$632K +$638K +3,599 New
SBFM
361
S-Bank Fund Management
Finland
$624K -$186K -1,050 -23%
BBVA
362
Banco Bilbao Vizcaya Argentaria
Spain
$623K -$328K -1,849 -34%
MSRPS
363
Maryland State Retirement & Pension System
Maryland
$622K
EOJOAM
364
E. Ohman J:or Asset Management
Sweden
$614K
NMERB
365
New Mexico Educational Retirement Board
New Mexico
$614K
HP
366
Hikari Power
Japan
$604K +$129K +730 +27%
RHJA
367
Rice Hall James & Associates
California
$590K -$886 -5 -0.1%
Wealthfront Advisers
368
Wealthfront Advisers
California
$589K -$49.8K -281 -8%
BCA
369
Bay Colony Advisors
Massachusetts
$587K +$593K +3,346 New
WP
370
Woodline Partners
California
$581K +$587K +3,311 New
DSC
371
Duncker Streett & Co
Missouri
$580K +$177 +1 +0%
DILIC
372
Dai-ichi Life Insurance Company
Japan
$573K
LCM
373
Landscape Capital Management
New Jersey
$570K +$576K +3,247 New
NWAG
374
Net Worth Advisory Group
Utah
$570K +$84.9K +479 +17%
FDCDDQ
375
Federation des caisses Desjardins du Quebec
Quebec, Canada
$566K -$44.7K -252 -7%

IEX Hedge Fund Activity: Q2 2025 in Review

637 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in IDEX (IEX) for Q2 2025, worth a combined $13.6B — down 0.42% from $13.6B a quarter earlier.

Buyers outnumbered sellers: 76 funds opened new IEX positions and 72 closed out — a net gain of 4 holders — while 263 added to existing stakes and 214 trimmed.

The largest buyer was Wellington Management Group, adding an estimated $216M. The largest seller was Pictet Asset Management, cutting an estimated $144M.

  • 637 institutional investors held IDEX (IEX) as of Q2 2025, down from 638 in Q1 2025.
  • Funds reported $13.6B of IDEX stock for Q2 2025, down 0.42% quarter-over-quarter.
  • 76 funds opened new IDEX positions in Q2 2025 and 72 closed out, a net change of +4 holders.
  • The largest IDEX buyer in Q2 2025 was Wellington Management Group, an estimated $216M added.
  • The largest IDEX seller in Q2 2025 was Pictet Asset Management, an estimated $144M sold.

Based on aggregated 13F filings for Q2 2025.